So with no luck in finding the original owner of my car but findinng out from people that knew him that it used to have a 35r on it and thats all they knew I want to know if the engine internals were upgraded. There is no real way to do this short of tearing the engine apart. I decided that if they pistons were anything different than stock compression, a compression test would read higher/lower than the norm. So I did one and got an even 180 across every cylinder with the engine warm. Now I need some input from the community here as to what you guys think. If I am going nowhere with my theory please tell me so as well. Thank you.

 

You can pull the oil pan and see if the block is stock relatively easily. Also if you look carefully into the sparkplug holes you can see the piston tops and see if the pistons are stock without removing anything.

 

For stock cam timing, that sounds about right.

Got stock cams??

 

hks 272.

 

might aswell be stock cams.

 

Probably have a stock motor if he was running hks 272s... those cams are beyond junk technology, no one one in their right mind would run those on a build motor these days with a 35r. Pull the oil pan if your really wanna know if your motor stock or built

 

Thats really good compression!!!

 

Are you sure you did the compression test right?
How did you do it?

 

That's not entirely true we don't know when the previous owner upgraded the cams. If he did it 5+ years ago then those cams were good cams back then. If it was a previous owner he may have built it some time ago.

Also if you know a shop that has a borescope they may be able to help you out there.

 

The work would have been done years ago when the hks cams were hot. Ill pull the oil pan the next time I change.

 

lol

 

Yes I agree on the cams they wouldnt be my choice, bigger ones are going in this weekend.

 

And if the cams were done 5 years ago you seriously think a motor that was built 5 years ago with cheap parts since much wasn't available back then would still be good to this date? I don't think so, Hardly Doubt previous owner babied his car if he built the motor for it to last to 2011 and still be running hks 272's